Where does “indubious” come from?

indubious (English) comes from Latin indubius, from Latin īn-, from Latin în, from Latin en, from Proto-Italic en, from Proto-Indo-European h₁én — in.

indubious (English): Not dubious or doubtful; certain; Not doubting;...

Definitions

  1. Not dubious or doubtful; certain; Not doubting;...

Ancestry of “indubious”, step by step

StepLanguageWordMeaning
1Latinindubiuscertain, not in doubt
2Latinīn-un-, non-, not
3Latinînin, at, on, upon, from (space)
4Latinenlookǃ beholdǃ; reallyǃ?; come onǃ
5Proto-Italicenin
6Proto-Indo-Europeanh₁énin

Words derived from “indubious”

Every word from Proto-Indo-European h₁én →Every word from Latin īn- →Every word from Proto-Italic en →